Half-life measurement of short-lived Ru-94m(44)44+ using isochronous mass spectrometry
文献类型：期刊论文
| 作者 | Sun, B. H.1; Tu, X. L.6,7,9 ; Chen, X. C.6,7; Xu, X.6,7; Litvinov, Yu. A.6,7,9,10; Xu, H. S.6,7; Blaum, K.9; Chen, R. J.6,7; Fu, C. Y.6,7,11; Ge, Z.6,7
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| 刊名 | PHYSICAL REVIEW C
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| 出版日期 | 2017-09-27 |
| 卷号 | 96页码:5 |
| ISSN号 | 2469-9985 |
| DOI | 10.1103/PhysRevC.96.031303 |
| 英文摘要 | Decay of the 8(+) isomer in fully stripped ions Ru-94(44+) is observed during its circulation in the experimental Cooler Storage Ring (CSRe) at the Heavy Ion Research Facility in Lanzhou (HIRFL). The Ru-94(44+) ions were produced via projectile fragmentation and stored in CSRe tuned into the isochronous ion-optical mode. The timing signals of the ions, passing through a time-of-flight detector, were consecutively registered and used to determine the variation of revolution time as a function of revolution number. A sudden change of the revolution time at a specific revolution was identified as a fingerprint of the Ru-94(44+) isomer decay. The isomeric half-life was deduced to be 102(17) mu s, which agrees well with the theoretical expectation by blocking the internal conversion decay of the isomer. Our work proved the feasibility of studying decays of short-lived isomers in high atomic charge states using the isochronous mass spectrometry. In addition, (94)mRu(44+) represents the shortest-lived nuclear state whose mass has ever been measured directly. |
| WOS关键词 | FRS-ESR-FACILITY ; ORBITAL ELECTRON-CAPTURE ; CR STORAGE-RING ; EXOTIC NUCLEI ; BETA-DECAY ; STATE ; IONS ; CONVERSION ; FRAGMENTS ; DETECTOR |
| 资助项目 | National Key Program for S& T Research and Development[2016YFA0400504] ; Major State Basic Research Development Program of China[2013CB834401] ; Key Research Program of Frontier Sciences, CAS ; NSFC[U1232208] ; NSFC[U1432125] ; NSFC[11605248] ; NSFC[11605249] ; NSFC[11605252] ; NSFC[11605267] ; CAS Pioneer Hundred Talents Program ; Max-Plank Society ; Helmholtz-CAS Joint Research Group[HCJRG-108] ; ExtreMe Matter Institute (EMMI) at the GSI Helmholtzzentrum fur Schwerionenforschung, Darmstadt, Germany |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000411984700001 |
| 资助机构 | National Key Program for S& T Research and Development ; Major State Basic Research Development Program of China ; Key Research Program of Frontier Sciences, CAS ; NSFC ; CAS Pioneer Hundred Talents Program ; Max-Plank Society ; Helmholtz-CAS Joint Research Group ; ExtreMe Matter Institute (EMMI) at the GSI Helmholtzzentrum fur Schwerionenforschung, Darmstadt, Germany |
| 源URL | [http://119.78.100.186/handle/113462/24423]  |
| 专题 | 近代物理研究所_实验物理中心 近代物理研究所_兰州重离子研究装置 |
| 通讯作者 | Wang, M. |
| 作者单位 | 1.Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China 2.Univ Paris Sacaly, Univ Paris Sud, CNRS, CSNSM,IN2P3, F-91405 Orsay, France 3.Saitama Univ, Dept Phys, Saitama 3388570, Japan 4.Natl Lab Heavy Ion Accelerator Facil Lanzhou, Res Ctr Hadron Phys, Hefei 230026, Anhui, Peoples R China 5.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 6.Chinese Acad Sci, Inst Modern Phys, Key Lab High Precis Nucl Spect, Lanzhou 730000, Gansu, Peoples R China 7.Chinese Acad Sci, Inst Modern Phys, Ctr Nucl Matter Sci, Lanzhou 730000, Gansu, Peoples R China 8.GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, Planckstr 1, D-64291 Darmstadt, Germany 9.Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany 10.GSI Helmholtzzentrum Schwerionenforsch, Planckstr 1, D-64291 Darmstadt, Germany |
| 推荐引用方式 GB/T 7714 | Sun, B. H.,Tu, X. L.,Chen, X. C.,et al. Half-life measurement of short-lived Ru-94m(44)44+ using isochronous mass spectrometry[J]. PHYSICAL REVIEW C,2017,96:5. |
| APA | Sun, B. H..,Tu, X. L..,Chen, X. C..,Xu, X..,Litvinov, Yu. A..,...&Zhang, Y. H..(2017).Half-life measurement of short-lived Ru-94m(44)44+ using isochronous mass spectrometry.PHYSICAL REVIEW C,96,5. |
| MLA | Sun, B. H.,et al."Half-life measurement of short-lived Ru-94m(44)44+ using isochronous mass spectrometry".PHYSICAL REVIEW C 96(2017):5. |
入库方式： OAI收割
来源：近代物理研究所
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